If your Konica Minolta bizhub is displaying a paper jam in the fuser or exit area, you are dealing with one of the most common — and most mishandled — jam locations on these machines. Jam Code 55 (and its variants: 55-01, 55-02, 55-10, 55-40) indicates that paper has become stuck in or around the fusing unit or paper exit area, preventing the machine from completing its print cycle.

This guide covers exactly where to look, how to safely remove the jammed paper, what causes this jam to happen repeatedly, and how to prevent it from coming back.

Understanding Jam Code 55 — What the Sub-Codes Mean

The sub-code after the dash tells you precisely which sensor detected the jam and at what point in the paper path the failure occurred:

• 55-01 — Paper did not reach the fuser exit sensor within the expected time (late arrival — paper stalled entering the fuser)
• 55-02 — Paper did not clear the fuser exit sensor in time (paper entered the fuser but did not exit — most common sub-code)
• 55-10 — Paper detected at the fuser exit sensor when it should not be there (residual paper from a previous jam, or a sensor stuck in the triggered state)
• 55-40 — Paper jam detected at the duplex / reversal section immediately after the fuser exit (duplex jobs only)

Knowing the sub-code before you start helps you look in exactly the right place immediately rather than searching the entire paper path.

Safety Warning Before You Begin

Step-by-Step: How to Clear a Jam Code 55

Step 1 — Do Not Pull the Paper Forcefully

The single most damaging mistake users make with a fuser jam is yanking the paper out with force. The fuser rollers grip the paper firmly. Pulling hard can:

• Tear the paper, leaving fragments inside the fuser that cause the next jam
• Damage the fuser roller surface, causing permanent image quality defects
• Dislodge the fuser cleaning web or separation claws

Always use gentle, slow, steady tension when removing jammed paper from the fuser area.

Step 2 — Power Off the Machine

1. Press the main power button to power the machine OFF
2. Wait at least 5 minutes before opening the fuser area — longer if the machine has been running a heavy print job
3. Do not simply open the right-side door while the machine is powered on — some models will attempt to automatically clear the jam, which can make the paper harder to remove

Step 3 — Open the Right-Side Door

1. Locate the right-side door release handle — on most bizhub models this is a green or grey lever on the right side of the machine
2. Pull the handle and swing the door open fully
3. The fusing unit will be visible — it is a large rectangular unit, typically with a green handle or release lever of its own

Step 4 — Release the Fuser Pressure and Remove the Paper

1. Look for the green fuser release lever on the fuser unit itself — rotating or lifting this lever releases the pressure between the fuser rollers, making paper removal much easier and safer
2. Once the pressure is released, gently pull the jammed paper in the direction of paper travel (downward toward the exit tray) — never pull backwards against the direction of travel, as this drags toner residue across the fuser roller surface
3. If the paper tears, remove every fragment carefully — use a flashlight to inspect the fuser entry and exit points for torn pieces
4. Check the exit roller area just above the output tray — paper sometimes makes it past the fuser but jams at the exit rollers

Step 5 — Check the Duplex / Reversal Unit (for 55-40)

If your sub-code is 55-40, also open the duplex unit — usually accessed via a secondary green lever or door below or behind the fuser area.

1. Open the duplex access door
2. Check the reversal path for paper — duplex jams often leave a sheet partially reversed inside this area
3. Remove any paper found, again pulling gently in the direction of travel

Step 6 — Inspect for Torn Paper Fragments

Before closing the machine, this step is critical. A single torn fragment left inside the fuser will cause another jam on the very next print cycle.

1. Use a flashlight to inspect the full length of the fuser entry slot and exit slot
2. Check between the fuser rollers — rotate them slowly by hand (only after the unit has fully cooled) to expose the full roller surface
3. Check the exit roller nip above the output tray
4. Remove any fragments with tweezers — never use sharp tools that could scratch the roller surface

Step 7 — Close All Covers and Power On

1. Ensure the fuser release lever is returned to its locked/closed position
2. Close the right-side door firmly until it clicks — a partially closed door will cause the machine to display a door open error
3. Power the machine back on and allow it to complete its warm-up cycle
4. Run a test print of several pages to confirm the jam has been fully cleared

What Causes Jam Code 55 to Happen Repeatedly?

A single jam in the fuser area is usually caused by a paper quality or loading issue. But if Jam Code 55 keeps coming back — occurring every few prints or every day — there is an underlying mechanical cause that needs to be addressed. The most common recurring causes are:

Worn Exit Rollers

The exit rollers are rubber rollers just past the fuser that pull the paper out of the fuser and deliver it to the output tray. When these rollers wear smooth and lose their grip, paper hesitates at the exit point and trips the fuser exit sensor, generating Jam Code 55.

Signs of worn exit rollers: paper consistently stopping just short of the output tray, paper curling back after partial exit, shiny or glazed roller surface. Exit rollers are inexpensive consumables — replace them as part of your regular PM kit.

Worn or Damaged Fuser Separation Claws

Separation claws (also called separation fingers or picks) are small plastic or metal fingers that peel the paper away from the fuser roller as it exits. If these claws are worn, broken, or coated with toner buildup, paper wraps around the fuser roller instead of separating cleanly — causing a wrap jam inside the fuser.

A wrap jam is the most severe type of fuser jam and can damage the fuser roller surface if not cleared carefully. Inspect the separation claws during every preventive maintenance visit and replace any that are chipped, bent, or heavily coated.

Incorrect Paper Type or Weight

Heavy paper stocks (over 200gsm), envelopes, and coated papers require specific fuser temperature settings. Running these media types without selecting the correct paper type in the machine settings causes the fuser to apply incorrect heat and pressure, leading to paper sticking to the fuser roller or failing to exit cleanly.

Always set the correct media type in Utility → Machine Settings → Paper Type for each tray when using specialty paper.

Damp or Poor Quality Paper

Paper that has absorbed moisture from the environment becomes soft and loses its stiffness, causing it to curl, fold, or wrap around rollers in the fuser area. Low-quality paper also leaves more paper dust inside the machine, which builds up on rollers and sensors over time.

Always store paper in a dry location, use paper within its recommended date range, and use paper that meets Konica Minolta’s recommended specifications (typically 60–220gsm, dry, unbent).

Fuser Unit at End of Life

Fuser units have a rated page life — typically 150,000–200,000 pages depending on the model. As the fuser approaches the end of its life, the roller surface degrades, the cleaning web becomes saturated, and paper adhesion increases. If your machine is running beyond the fuser’s rated life and experiencing frequent Jam Code 55 errors, a fuser replacement is the correct solution.

Check the fuser page count in Service Mode → Counter → Fuser Counter. If it is at or beyond the rated life, schedule a fuser replacement.

Dirty or Faulty Fuser Exit Sensor

The fuser exit sensor (a small photo-interrupter sensor) detects when paper passes through the fuser. If this sensor is coated in toner dust or paper debris, it may fail to detect paper passing by — causing the machine to assume a jam even when paper exits normally. In some cases the sensor flag (the small plastic tab that interrupts the sensor beam) becomes bent or broken.

Clean the fuser exit sensor with a dry cotton swab during regular maintenance. If the sensor flag is broken, it must be replaced.

How to Prevent Jam Code 55

• Replace the PM kit on schedule — most bizhub PM kits include exit rollers, feed rollers, and separation pads. Installing the kit on time prevents the majority of recurring jam code 55 issues
• Inspect separation claws at every service visit — a 30-second inspection can prevent a wrap jam that damages the fuser roller
• Use correct paper specifications — always match the paper type setting in the machine to the actual media being used
• Store paper properly — keep paper sealed in its packaging until needed, stored flat in a dry environment away from direct sunlight
• Replace the fuser unit at its rated life — do not run the fuser beyond its page count limit to save money; the cost of a damaged fuser roller far exceeds the cost of a timely replacement
• Clean the fuser exit sensor during PM visits — takes one minute and prevents false jam detections

Professional Technician Summary

Jam Code 55 on Konica Minolta bizhub machines is a fuser or exit area jam, and it is one of the most preventable jam codes on the platform. In office environments, the most common causes are damp paper, incorrect paper type settings, and worn exit rollers. In higher-volume environments, worn separation claws and an end-of-life fuser unit are the leading causes of recurring 55 jams.

Always clear the jam gently, inspect thoroughly for paper fragments before restarting, and address the root cause rather than simply clearing the code. A machine that jams in the fuser area more than once a week has a mechanical issue that needs to be resolved — not just cleared and restarted.